Rough Country's Rear Air Spring Kit features two RC branded high-quality double convoluted airbags complemented with DOT-approved airlines. Whether you plan on towing or hauling in the not-so-distant future Rough Country's Air Spring kit is the must-have accessory to ensure that your trailer is level reducing the weight off of the tongue of your trailer.  Each kit offers 1/4" push connector fittings and all of the bracketry needed to ensure installation is lightning fast and secure!